diff --git a/cm3apps/install.txt b/cm3apps/install.txt
index 22a84d0818f2c91c59a01f9e5d7658638df33b43..f19eb4404303ae653ab08a9453976550f9b57fee 100644
--- a/cm3apps/install.txt
+++ b/cm3apps/install.txt
@@ -491,8 +491,14 @@ C) Install Open Cascade (optional)
 
 D) Install Torch
         cd local
+       // no gpu
         wget https://download.pytorch.org/libtorch/cpu/libtorch-shared-with-deps-1.4.0%2Bcpu.zip
         unzip libtorch-shared-with-deps-1.4.0+cpu.zip 
+       // gpu
+        sudo apt-get install nvidia-cuda-toolkit
+        //check version nvcc --version
+        wget https://download.pytorch.org/libtorch/cu101/libtorch-shared-with-deps-1.7.0%2Bcu101.zip
+
 
         add export TORCHDIR=$HOME/local/libtorch in your .bashrc